I booted to the usb with no persistent data file and it booted with no problem. I then booted to the one I created with the persistent data file and it booted with no problem but is definitely slower than the one with no persistent data file. It did keep the correct time for the forum and my login information. Seems to work "OK" but somewhat slower than the other Ubuntu install. Not really a problem, I just am not sure why the difference and whether or not it is just my install since I had the problem with the update.